OClCollMeshEngn,PcloudStimProd: port to sscl::co coros

We've now ported the OpenClCollMeshEngn and PcloudStimProd::produceFrameReq
portions of the Livox pipeline to coros.

stimBuffApis/livoxGen1/openClCollatingAndMeshingEngine.h

@@ -13,7 +13,7 @@
 #define CL_TARGET_OPENCL_VERSION 120
 #include <CL/cl.h>
 #include <spinscale/asynchronousLoop.h>
-#include <spinscale/cps/callback.h>
+#include <spinscale/co/invokers.h>
 #include <spinscale/syncCancelerForAsyncWork.h>
 #include <user/stimulusFrame.h>
 #include <user/stagingBuffer.h>
@@ -86,14 +86,12 @@ public:
 	bool setup();
 	void finalize();
 
-	typedef std::function<void(bool, StimulusFrame&)>
-		compactCollateAndMeshFrameReqCbFn;
-	void compactCollateAndMeshFrameReq(
-		sscl::AsynchronousLoop& asyncLoop, StimulusFrame& stimulusFrame,
+	sscl::co::ViralNonPostingInvoker<bool> compactCollateAndMeshFrameCReq(
+		sscl::AsynchronousLoop& frameAssemblyResult,
+		StimulusFrame& stimulusFrame,
 		std::optional<std::reference_wrapper<StimulusFrame>> intensityStimFrame,
 		std::optional<AmbienceProductionDesc> lightAmbienceProductionDesc,
-		std::optional<AmbienceProductionDesc> darkAmbienceProductionDesc,
-		sscl::cps::Callback<compactCollateAndMeshFrameReqCbFn> callback);
+		std::optional<AmbienceProductionDesc> darkAmbienceProductionDesc);
 
 private:
 	// Callback function types
@@ -214,9 +212,6 @@ private:
 	bool mapAverageIntensityBuffer(cl_map_flags mapFlags = CL_MAP_READ);
 	bool unmapAverageIntensityBuffer();
 
-	// Forward declaration for continuation class
-	class CompactCollateAndMeshFrameReq;
-
 	// Unified kernel start function
 	template<typename SetupArgsFn, typename ValidateBuffersFn>
 	bool startKernel(